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Transcription and Regulation

Transcription and Regulation
Transcription factors are

CATT boxes
proteins which bind to DNA and regulate transcription
TATA boxes
promoters

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Transcription and Regulation
In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is

RNA polymerase II
RNA polymerase III
none of these
RNA polymerase I

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Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

multisubunit enzymes
highly glycosylated in their active forms
only active inside the cell
interchangable with DNA polymerases

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Transcription and Regulation
RNA polymerase holoenzyme initiates transcription which involves

recognition of the -10 sequence only
None of these
recognition of the -10 sequence and -35 sequence
recognition of the -35 sequence only

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Transcription and Regulation
Promoters for tRNAs are located

downstream from the start codon
none of these
upstream from the start codon
both (a) and (b)

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Transcription and Regulation
In prokaryotes, transcription is

terminated by the stop codon
terminated by a start codon
terminated by a protein called rho
terminated by a poly A sequence

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